Free Weight Loss Calculator

How Long Will It Take to Lose Weight?

Get a realistic timeline and milestones for reaching your goal weight.

Calculate Timeline ↓

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Calculate your TDEE first →

The science of weight loss timelines

1

7700 kcal = 1 kg of fat

1 kg of fat = ~7700 kcal deficit needed to lose it.

2

Safe rate: 0.5–1% body weight/week

Losing 0.5–1% of body weight per week minimises muscle loss.

3

Real results vary

First weeks may be faster due to water loss — then results settle to expected rate.

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